U.S. patent application number 17/288563 was filed with the patent office on 2022-09-01 for method for preparing weather-resistant printing board.
The applicant listed for this patent is ANHUI SENTAI WPC-TEC FLOORING CO., LTD.. Invention is credited to Dong Chen, Donghui Huang, Daoyuan Tang.
Application Number | 20220274391 17/288563 |
Document ID | / |
Family ID | 1000006404032 |
Filed Date | 2022-09-01 |
United States Patent
Application |
20220274391 |
Kind Code |
A1 |
Tang; Daoyuan ; et
al. |
September 1, 2022 |
METHOD FOR PREPARING WEATHER-RESISTANT PRINTING BOARD
Abstract
The present disclosure belongs to the technical field of board
manufacturing, and relates to a method for preparing a
weather-resistant printing board. It specifically includes the
following steps: S-1, printing on at least one decorative surface
of a core material layer of the board or on an overlay surface of a
prefabricated wear-resistant layer to form a printed pattern layer;
S-2, forming an adhesive layer between the printed pattern layer
and the prefabricated wear-resistant layer or between the printed
pattern layer and the core material layer; S-3, bonding the
prefabricated wear-resistant layer and the core material layer to
obtain the board. The peeling force of the wear-resistant layer of
the outer layer of the board obtained by the present disclosure can
reach at least 3 MPa, and at the same time, the prefabricated
wear-resistant layer is adopted to reduce the requirements on
device and production sites.
Inventors: |
Tang; Daoyuan; (Xuancheng,
CN) ; Chen; Dong; (Xuancheng, CN) ; Huang;
Donghui; (Xuancheng, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ANHUI SENTAI WPC-TEC FLOORING CO., LTD. |
Xuancheng |
|
CN |
|
|
Family ID: |
1000006404032 |
Appl. No.: |
17/288563 |
Filed: |
October 28, 2020 |
PCT Filed: |
October 28, 2020 |
PCT NO: |
PCT/CN2020/124332 |
371 Date: |
April 25, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B32B 27/06 20130101;
B32B 38/145 20130101; B32B 27/308 20130101; B32B 2307/712 20130101;
B32B 27/365 20130101; B32B 27/304 20130101; B32B 37/12
20130101 |
International
Class: |
B32B 37/12 20060101
B32B037/12; B32B 38/00 20060101 B32B038/00; B32B 27/06 20060101
B32B027/06; B32B 27/36 20060101 B32B027/36; B32B 27/30 20060101
B32B027/30 |
Claims
1. A method for preparing weather-resistant printing board, wherein
comprising the following steps: S-1, printing on an overlay surface
of a prefabricated wear-resistant layer to form a printed pattern
layer, wherein before printing the pattern layer on the
prefabricated wear-resistant layer, coating a protective layer
first on the prefabricated wear-resistant layer, and then printing
a pattern on the protective layer formed by a weather-resistant
paint; S-2, coating an adhesive on the prefabricated wear-resistant
layer printed with the printed pattern layer, to form an adhesive
layer; S-3, bonding the prefabricated wear-resistant layer formed
with the adhesive layer and the core material layer to obtain the
board.
2. The method according to claim 1, wherein a coating amount of an
adhesive used in the adhesive layer in step S-2 is 80-125 grams per
square meter.
3. (canceled)
4. (canceled)
5. The method according to claim 1, wherein the prefabricated
wear-resistant layer is selected from a group consisting of a
prefabricated PMMA layer, a prefabricated PC layer and a
prefabricated PVDF layer.
6. The method according to claim 5, wherein the prefabricated
wear-resistant layer is a prefabricated PMMA layer.
7. (canceled)
8. (canceled)
9. (canceled)
10. A board obtained by a method according to any one of claim 1,
2, 5, or 6.
Description
TECHNICAL FIELD
[0001] The present disclosure belongs to the technical field of
board manufacturing, and relates to a method for preparing a board,
in particular to a method for preparing a weather-resistant
printing board.
BACKGROUND
[0002] In order to achieve the aesthetics and wear resistance
required by the floor or other decorative boards, the embossing
rollers are generally used to press a pattern similar to wood grain
on the floor surface, so that the color of the pattern is more
similar to that of the wood board. It is usually to print the
desired pattern on the board, and then provide a protective layer
on the pattern to protect the pattern.
[0003] For example, the applicant's earlier invention application
with patent publication No. CN109849397A has disclosed the
following steps: printing a pattern on the thermal transfer paper
by a printer; and then placing the thermal transfer paper on the
surface of the PVC foam core layer, transferring the pattern on the
thermal transfer paper to the surface of the PVC foam core layer by
using a transfer machine; then applying the glue: applying the
modified glue evenly to the surface of the PVC core layer after
thermal transfer, and then curing by UV; coating film: coating the
film solution on the cured glue layer, and after the coating is
finished, firing in a vulcanizer to obtain a semi-finished
product.
[0004] In the actual production process, it is found that the
peeling force of the film is not ideal and difficult to control.
The covered film is easy to fall off after a period of use,
especially when making outdoor floors. In outdoor environments, the
service life of the floor is greatly shortened.
[0005] The prior art also adopts post-coextrusion to form the
protective layer. For example, the U.S. Pat. No. 9,707,591B1
discloses a method of applying the outer layer to the extruded
member. Although the peeling force of the formed outer layer can
meet the requirements, the outer layer is difficult to ensure the
same thickness, leading to inconsistent thickness of the final
board, resulting in unqualified products, and unable to use the
prefabricated protective layer, such that high device and
production sites are required.
SUMMARY
[0006] The present disclosure is intended to provide a method for
preparing a weather-resistant printing board, the peeling force of
the wear-resistant layer of the outer layer can reach at least 3
MPa, and the prefabricated wear-resistant layer is adopted to
reduce the requirements on device and production sites.
[0007] In order to achieve the above objective, the present
disclosure adopts the following technical solutions:
[0008] A method for preparing a weather-resistant printing board
can improve the adhesion performance of the printed pattern layer
and the prefabricated wear-resistant layer through technological
optimization, and can ensure the peel strength of the prefabricated
wear-resistant layer. The method comprises the following steps:
[0009] S-1, printing on at least one decorative surface of a core
material layer of the board or on an overlay surface of a
prefabricated wear-resistant layer to form a printed pattern
layer;
[0010] S-2, coating an adhesive on the prefabricated wear-resistant
layer or the core material layer to form an adhesive layer;
[0011] S-3, bonding the prefabricated wear-resistant layer and the
core material layer to obtain the board.
[0012] In the above technical solution, the prefabricated
wear-resistant layer is adopted. Compared with the post-coextrusion
method to form a protective wear-resistant layer, the requirements
for device and site for board production can be reduced; and at the
same time, in order to overcome the defects that the peel strength
of the prefabricated wear-resistant layer is difficult to meet the
requirements, the adhesive layer is provided to increase the
bonding strength of the prefabricated wear-resistant layer and
ensure the peel strength of the prefabricated wear-resistant layer.
The printed pattern layer obtained by printing, because the pattern
is often discontinuous, intermittent, has a certain pattern gap;
with the help of the gap, the adhesive layer is partially
interrupted (when the adhesive layer forms a uniform thickness, the
adhesive layer is thinner than the pattern at the gap, and the
traction on the surrounding adhesive layer is small when peeling
off), to avoid the overall peeling off of the adhesive layer,
thereby further ensuring the peel strength of the prefabricated
wear-resistant layer. In addition, in the gap between the printed
pattern layer, the adhesive layer directly bonds the core material
layer. Compared with the direct bonding of the printed pattern
layer, the connection strength is higher, and the peeling of the
printed pattern layer is avoided.
[0013] In the prior art, it is also possible to use an affinity
agent between the printed pattern layer and the adhesive layer or
between the adhesive layer and the prefabricated wear-resistant
layer to form an affinity agent layer. It is generally believed
that the use of an affinity agent will enhance the connection force
of the adhesive, but the inventor found that the use of the
affinity agent in the present disclosure is likely to produce
bubbles between the affinity agent layer and the adhesive layer
during production or later use. This may be due to the incomplete
volatilization of the solvent in the affinity agent, which not only
affects the product, but also affects the strength of the
connection between the layers, and also leads to a decrease in the
strength of the board. In the case of not using an affinity agent,
it was unexpectedly found that the peel strength is greater than
that of using an affinity agent.
[0014] The core material layer can be any core material layer, not
limited to polyvinyl chloride foamed materials, but also suitable
for non-foamed polyvinyl chloride materials, polyvinyl chloride WPC
materials, polyolefin WPC materials, SPC materials, etc. It is
suitable for both foamed and non-foamed materials formed by
thermoplastic materials.
[0015] The printing can be 3D printing or flat printing to print
out patterns such as wood grain and patterns.
[0016] In a preferred embodiment, a coating amount of an adhesive
used in the adhesive layer is 80-125 grams per square meter. That
is, the thickness of the adhesive layer is the thickness formed by
uniformly coating 80-125 grams of adhesive per square meter. The
thickness of the adhesive layer not only directly affects the
bonding effect, but also determines the peel strength. Since the
adhesive layer is directly connected to the wear-resistant layer,
it will also indirectly affect the wear-resistant and
weather-resistant effects of the wear-resistant layer.
[0017] In a further preferred embodiment, the coating thickness of
the adhesive layer is 110-120 grams per square meter.
[0018] The printed pattern layer can be printed on the core
material layer or on the overlay surface of the prefabricated
wear-resistant layer. In step S-2, the adhesive is coated on the on
the prefabricated wear-resistant layer printed with the printed
pattern layer, to form the adhesive layer. The adhesive layer is
first coated on the prefabricated wear-resistant layer with the
printed pattern layer, and then pasted on the core material layer
to form a strong bond with the printed layer and the prefabricated
wear-resistant layer, and then form a adhesive force with the core
material layer, such that it is beneficial to increase the peel
strength of the prefabricated wear-resistant layer, and is also the
key to ensuring the peel strength.
[0019] In a preferred embodiment, in step S-1, the printed pattern
layer is printed on the core material layer; in step S-2, the
adhesive is coated on the core material layer printed with the
printed pattern layer, to form the adhesive layer.
[0020] In a preferred embodiment, before printing the pattern layer
on the prefabricated wear-resistant layer, a protective layer is
first coated on the prefabricated wear-resistant layer. This
protective layer not only helps the formation of the printed
pattern layer, but also protects the printed pattern layer and
adhesive layer after the board is formed. According to the
understanding of inertial thinking, the protective layer will
affect the connection strength between the prefabricated
wear-resistant layer and the adhesive layer, the printed layer and
the core material layer. However, in the present disclosure, the
peel strength of the protective layer is not reduced when adding
the protective layer; and on the contrary, a certain improvement is
present, especially after a period of use, the peel strength is
better than that without a protective layer. This may be because
the protective effect of the protective layer on the adhesive layer
is greater than the negative effect of its connection strength.
[0021] In a preferred embodiment, after the pattern layer is
printed on the core material layer, a protective layer is coated on
the formed printed pattern layer.
[0022] The above-mentioned protective layer may be a protective
layer formed by weather-resistant paint, such as UV transparent
weather-resistant paint.
[0023] In a preferred embodiment, the prefabricated wear-resistant
layer is selected from a group consisting of a prefabricated PMMA
layer, a prefabricated PC layer and a prefabricated PVDF layer, or
the like.
[0024] In a further preferred embodiment, the prefabricated
wear-resistant layer is a prefabricated PMMA layer. The
anti-yellowing effect is the best when the prefabricated PMMA layer
is adopted.
[0025] In a preferred embodiment, the adhesive is hot-melt
adhesive, such as ethylene and its copolymers (EVA, EEA, EAA, EVAL)
hot-melt adhesive, polyurethane (PUR) hot-melt adhesive, polyamide
(PA) hot-melt adhesive, polyester (PES) hot-melt adhesive, etc.
[0026] In a further preferred embodiment, the adhesive is a
polyurethane hot-melt adhesive. Even if a prefabricated PMMA layer
with good anti-yellowing effect is adopted, yellowing still occurs
after long-term use. The inventor further selected the adhesive
used and found that after adopting the polyurethane glue, the
yellowing phenomenon disappeared when used in combination with
PMMA.
[0027] In a preferred embodiment, the thickness of the printed
pattern layer is 0.1-1.5 filaments. The thickness of the printed
pattern layer determines the interaction effect between the
pre-coated adhesive layer and the adhesive layer. If it is too
thin, it will affect the aesthetics and visual effects of the
formed board. If it is too thick, it will form a poor connection
with the adhesive layer.
[0028] In a preferred embodiment, the core material layer is a
foamed core material layer.
[0029] In a further preferred embodiment, the core material layer
is a PVC foamed core material layer.
[0030] In a preferred embodiment, before performing step S-3, a
section of heating channel is passed first, and the temperature in
the heating channel is maintained at 30-42.degree. C.
[0031] In a preferred embodiment, after step S-3, the board
obtained in step S-3 is subjected to health preservation
treatment.
[0032] The second object of the present disclosure is to provide a
board obtained by the above-mentioned method for preparing thereof,
including a core material layer, a printed pattern layer printed on
at least one decorative surface of the core material layer, a
prefabricated wear-resistant layer located on the printed pattern
layer, and an adhesive layer between the printed pattern layer and
the prefabricated wear-resistant layer.
[0033] Beneficial Effect
[0034] By implementing the above technical solutions, the present
disclosure has the following beneficial effects:
[0035] 1. Using a prefabricated wear-resistant layer, compared to
the post-coextrusion method to form a protective wear-resistant
layer, the requirements for device and site for board production
can be reduced;
[0036] 2. It overcomes the defect that the post-coextrusion method
is difficult to control the thickness consistency of the protective
wear-resistant layer, and through the post-coextrusion method, the
frosting roller operation is required to increase the frosting
effect. While the prefabricated wear-resistant layer of the present
disclosure has a frosting effect, the process can be
simplified.
[0037] 3. The printed pattern layer cooperates with the adhesive
layer to ensure that the peel strength of the prefabricated
wear-resistant layer is at least 3 MPa;
[0038] 4. Through the adjustment and improvement of the preparation
process, the peel strength of the prefabricated wear-resistant
layer is further ensured and improved;
[0039] 5. By selecting the type of glue used for the prefabricated
wear-resistant layer and the adhesive layer, the yellowing
phenomenon of the board is overcome.
DESCRIPTION OF EMBODIMENTS
[0040] In order to further explain the technical solution of the
present disclosure in detail, the present disclosure will be
further clarified below in combination with specific
embodiments.
EXAMPLE 1
[0041] A method for preparing a wear-resistant printing board may
include the following steps:
[0042] S-1, forming a core layer of target size by extruding,
shaping, cooling, and cutting through an extruder;
[0043] S-2, inputting the core material layer to an online printing
device, and printing out a printed pattern layer showing wood
grain, figure or pattern, with a thickness of 0.5 silk;
[0044] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive
layer.
[0045] The amount of glue applied may be 120 grams per square
meter;
[0046] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer;
[0047] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
EXAMPLE 2
[0048] A method for preparing a wear-resistant printing board may
include the following steps:
[0049] S-1, forming a core material layer of the target size by
extruding, shaping, cooling, and cutting through an extruder; and
engraving a texture with wood grain, figure or pattern when the
core material layer passes through the embossing roller;
[0050] S-2, inputting the core material layer to an online 3D
printing device, and depositing the corresponding color on the
texture, with a thickness of 1.5 filaments;
[0051] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 80 grams per square meter;
[0052] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer;
[0053] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
EXAMPLE 3
[0054] A wear-resistant printing board includes a core material
layer, a printed pattern layer printed on the decorative surface of
the core material layer, a prefabricated wear-resistant layer on
the print pattern layer, and an adhesive layer between the printed
pattern layer and the prefabricated wear-resistant layer.
[0055] The core material layer can be any core material layer, not
limited to polyvinyl chloride foamed materials, but also suitable
for non-foamed polyvinyl chloride materials, polyvinyl chloride WPC
materials, polyolefin WPC materials, SPC materials, etc. It is
suitable for both foamed and non-foamed materials formed by
thermoplastic materials. In the embodiment, a PVC foamed core
material layer is selected.
[0056] The preparation method may include the following steps:
[0057] S-1, forming a PVC foamed core material layer of the target
size by extruding, shaping, cooling, and cutting through an
extruder; and engraving a texture with wood grain, figure or
pattern when the core material layer passes through the embossing
roller;
[0058] S-2, inputting the core material layer to an online 3D
printing device, and depositing the corresponding color on the
texture, with a thickness of 1.0 filaments;
[0059] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 110 grams per square meter;
[0060] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer, to
obtain the board;
[0061] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
EXAMPLE 4
[0062] The difference from Example 3 is that in step S-2, the
adhesive is coated on the printed pattern layer to form an adhesive
layer.
EXAMPLE 5
[0063] The difference from Example 3 is that a prefabricated PC
film is adopted by the prefabricated wear-resistant layer.
EXAMPLE 6
[0064] The difference from Example 3 is that a polyamide glue is
adopted by the adhesive.
EXAMPLE 7
[0065] The difference from Example 3 is that the prefabricated
wear-resistant layer uses a prefabricated PVDF film.
EXAMPLE 8
[0066] The difference from Example 3 is that in S-2, after the
printed pattern layer is formed, a protective layer is coated on
the printed pattern layer, and the protective layer is made of UV
transparent weather-resistant paint.
EXAMPLE 9
[0067] A method for preparing a wear-resistant printing board may
include the following steps:
[0068] S-1, forming a core material layer of the target size by
extruding, shaping, cooling, and cutting through an extruder;
[0069] S-2, inputting the core material layer to an online printing
device, and printing out a printed pattern layer showing wood
grain, figure or pattern, with a thickness of 0.5 silk;
[0070] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 120 grams per square meter;
[0071] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to
obtain the board;
[0072] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%
EXAMPLE 10
[0073] The difference from Example 9 is that, before step S-2, a
protective layer is coated on the reverse side of the prefabricated
PMMA wear-resistant layer (that is, the side of the printed pattern
layer), and the protective layer is made of UV transparent
weather-resistant paint.
[0074] For the boards of Examples 1-10, the peel strength of the
prefabricated wear-resistant layer was measured, and the
measurement results are as follows:
TABLE-US-00001 TABLE 1 Sample Peel strength/MPa Example 1 5.2
Example 2 4.0 Example 3 4.9 Example 4 3.3 Example 5 4.0 Example 6
3.0 Example 7 4.5 Example 8 4.5 Example 9 5.0 Example 10 4.8
[0075] In addition, the inventor also measured the peel strength of
the boards according to Examples 9 and 10 after six months of
exposure in the open air, and it was showed that the peel strength
of the board according to Example 9 was 4.5 MPa, while the peel
strength of the board according to Example 10 was still maintained
at 4.8 MPa.
COMPARATIVE EXAMPLE 1
[0076] A method for preparing a wear-resistant printing board may
include the following steps:
[0077] S-1, forming a core material layer of the target size by
extruding, shaping, cooling, and cutting through an extruder; and
engraving a texture with wood grain, figure or pattern when the
core material layer passes through the embossing roller;
[0078] S-2, inputting the core material layer to an online 3D
printing device, and depositing the corresponding color on the
texture, with a thickness of 5 filaments;
[0079] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 120 grams per square meter;
[0080] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer;
[0081] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
[0082] The difference from Example 1 is that the printed pattern
layer has a thickness of 5 filaments.
COMPARATIVE EXAMPLE 2
[0083] A method for preparing a wear-resistant printing board may
include the following steps:
[0084] S-1, forming a core material layer of the target size by
extruding, shaping, cooling, and cutting through an extruder; and
engraving a texture with wood grain, figure or pattern when the
core material layer passes through the embossing roller;
[0085] S-2, inputting the core material layer to an online 3D
printing device, and depositing the corresponding color on the
texture, with a thickness of 5 filaments;
[0086] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 50 grams per square meter;
[0087] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer;
[0088] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
[0089] The difference from Example 1 is that the amount of glue
coated to the adhesive layer is 50 grams per square meter.
COMPARATIVE EXAMPLE 3
[0090] A method for preparing a wear-resistant printing board may
include the following steps:
[0091] S-1, forming a core material layer of the target size by
extruding, shaping, cooling, and cutting through an extruder; and
engraving a texture with wood grain, figure or pattern when the
core material layer passes through the embossing roller;
[0092] S-2, inputting the core material layer to an online 3D
printing device, and depositing the corresponding color on the
texture, with a thickness of 5 filaments;
[0093] S-3, coating PUR glue on an overlay surface of the
prefabricated PMMA wear-resistant layer to form an adhesive layer,
with a glue amount of 150 grams per square meter;
[0094] S-4, attaching and pressing the prefabricated wear-resistant
layer with the adhesive layer on the printed pattern layer to form
the prefabricated wear-resistant layer on the decorative layer;
[0095] S-5, curing the obtained board for 7 days in an environment
with a temperature of 40.degree. C. and a humidity of 60%.
[0096] The difference from Example 1 is that the amount of glue
coated to the adhesive layer is 150 grams per square meter.
COMPARATIVE EXAMPLE 4
[0097] The difference from Example 1 is that no adhesive layer is
provided, and the prefabricated wear-resistant layer is directly
bonded to the printed pattern layer by heat pressing.
COMPARATIVE EXAMPLE 5
[0098] The preparation method of Embodiment 2 disclosed in Chinese
invention patent application CN109849397A was adopted.
[0099] For the boards obtained in Comparative Examples 1-5, the
peel strength of the prefabricated wear-resistant layer was
measured. The test method is carried out by the wear resistance
measurement method in GB/T17657-2013, the measurement results are
as follows:
TABLE-US-00002 TABLE 2 Samples Peel strength/MPa Comparative
Example 1 2.9 Comparative Example 2 2.4 Comparative Example 3 2.3
Comparative Example 4 1.6 Comparative Example 5 2.2
[0100] From the peel strength data in Table 2, Comparative Example
1 is worse than Example 3 because the printed pattern layer is too
thick, but the thickness of the adhesive layer remains unchanged,
leading to the breakage of the overall adhesiveness of the adhesive
layer, resulting in a deteriorating in the bond strength.
Comparative Examples 2 and 3 are worse than Example 3 because the
amount of glue applied to the adhesive layer is too much or too
little, causing the overall adhesiveness of the adhesive layer to
be too strong and easy to fall off as a whole, or too weak to cause
insufficient adhesive force. Comparative Example 4 is worse than
Example 3 in that no adhesive layer is provided and does not have
the effect of the adhesive layer of the present disclosure.
[0101] In addition, the wear resistance tests of the boards
obtained in Examples 1-7 and Comparative Examples 1-5 were also
carried out:
[0102] Test method: Test Method 3 of Wear Resistance provided in
GB/T17657-2013. The results are shown in Table 3.
TABLE-US-00003 TABLE 3 Samples Wear Value (g/100r) Example 1 0.05
Example 2 0.05 Example 3 0.05 Example 4 0.06 Example 5 0.07 Example
6 0.06 Example 7 0.07 Example 8 0.04 Example 9 0.05 Example 10 0.04
Comparative Example 1 0.05 Comparative Example 2 0.06 Comparative
Example 3 0.06 Comparative Example 4 0.06 Comparative Example 5
0.08
[0103] In addition, the surface adhesion strength tests were
carried out on the boards obtained in Examples 1-7 and Comparative
Examples 1-5:
[0104] Test method: GB/T15102-2006, the surface adhesion strength
determination method. The results are shown in Table 4.
TABLE-US-00004 TABLE 4 Samples Surface Adhesion Strength/MPa
Example 1 1.72 Example 2 1.41 Example 3 1.69 Example 4 1.29 Example
5 1.40 Example 6 1.26 Example 7 1.64 Comparative Example 1 1.22
Comparative Example 2 1.15 Comparative Example 3 1.14 Comparative
Example 4 0.60 Comparative Example 5 1.13
[0105] In addition, weather resistance tests were carried out on
the boards obtained in Examples 1-10 and Comparative Examples
1-5:
[0106] 100 pieces of the board samples of each example and
comparative example were taken, and the yellowing conditions were
counted after 1000 hours of UV. The results are shown in Table
5.
TABLE-US-00005 TABLE 5 Samples Percentage of Yellowing/% Example 1
0 Example 2 0 Example 3 0 Example 4 0 Example 5 9 Example 6 9
Example 7 12 Example 8 0 Example 9 0 Example 10 0 Comparative
Example 1 3 Comparative Example 2 0 Comparative Example 3 3
Comparative Example 4 18 Comparative Example 5 25
* * * * *